What is the warranty policy?

We provide a warranty and quality guarantee for our products.

Do you perform quality inspection on finished products?

Yes, we conduct 100% inspection including visual and function inspection.

What are the available diameters for the T2 series?

The T2 series is available in diameters of 46, 56, 66, 76, 86, and 101mm.

Inner Tube for Nq Wireline Core Barrel

Name: Inner Tube for Nq Wireline Core Barrel
Brand: Forsun Ultra-hard Material Industry Co., Ltd.
SKU: 754003055

Hunan, ChinaForsun Ultra-hard Material Industry Co., Ltd.

US$40.00-80.00

1 Piece

Product profile

After-sales Service

Quality Guarantee

Warranty

Available

Brand

Forsun

Model NO.

Size

Nq Hq Pq

Length

1.5m or 3.0m

Transport Package

Carton or Plywood Case

Specification

DCDMA CDDA

Trademark

FORSUN

Origin

Changsha

HS Code

84314320

Production Capacity

1000 Sets Per Month

Key features

Ultra-thin Wall Design: Enables rapid penetration through hard formations with very thin cutting face.

Wide Diameter Range: Available in diameters from 46mm to 146mm across multiple series.

Customization Options: Offers full, minor, and flexible customization from samples or designs.

Quality Guarantee: Comes with warranty and 100% visual and function inspection for finished products.

Optimized for Mining: Suitable for underground mining and surface exploration applications.

High Production Efficiency: Designed for optimum production and core recovery in medium to extra hard rock.

Wireline Compatibility: Eliminates need to couple/uncouple rod string during deep coring retrieval.

Rapid Lead Time: Peak and off-season lead times are within 15 workdays.

Company profile

Years of Export ExperienceExperienced TeamQuality AssuranceManagement Certification

Forsun Ultra-hard Material Industry Co., Ltd.

Hunan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 22 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤11.35h

AI-Powered supplier vetting

SummaryForsun Ultra-hard Material Industry Co., Ltd. is a China-based limited company established in 2001 with 107 employees, supplying drilling tools and accessories including core bits, core barrels, drill rods, casing pipes, reaming shells, and related equipment. It reports broad customization and ODM capabilities, documented quality and complaint-handling procedures, eight quality inspectors, and stated annual output of 250,000 core bits and 100,000 reaming shells. The supplier has valid manufacturing contracts with associated subcontractors, inventory capability, and lead times within 15 working days in both peak and off-season. However, no certifications, customer cases, overseas agents or branches, overseas warehouse, showroom, or offline trade-show participation are documented. It also does not provide OEM services for popular brands or an SDK. Financial information is present only as year references, without sufficient evidence to assess financial credibility.

Supplier typeThe supplier is identified as Forsun Ultra-hard Material Industry Co., Ltd., a combined business entity and limited company located in Hunan, China. It is not reported as an offshore company or part of a larger company group, and it offers drilling tools and accessories.

After-Sales capabilityThe supplier reports clear, followed procedures for customer complaints and corrective/preventive actions, plus inventory capability and standard quotation/payment options. However, it has no overseas warehouse, showroom, overseas agents or branches, and offers overseas service coverage in zero countries, indicating documented service processes but limited overseas infrastructure.

R&D capabilityThe supplier states that it had new products during the past year and provides ODM services, supporting active product-development capability. It reports no available SDK and does not provide OEM services for popular brands, but these limitations do not negate the stated R&D and ODM capabilities.

Production capacityProduction evidence includes named manufacturing equipment, eight quality inspectors, annual output of 250,000 core bits and 100,000 reaming shells, valid contracts with associated subcontractors, and lead times within 15 working days in both peak and off-season. These stated resources and capacity indicators support production capability.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. The same broad customization range is reported in both R&D and design-service information.